Audited Supplier
| Type: | High-precision cold-drawn seamless tube |
| Standard: | GB/T3639-2018, GB/T 5777-2008,the technology agreement |
| Material steel: | 45#, 16Mn(Q345B), 25Mn, 27SiMn, SY720, ZNP460 |
| Internal diameter Tolerance: | H8, H9,H10 |
| Straightness rate/roundness rate/mechanical performance : | As agreement |
| Chrome-plated | As request |
| Size: | 100mm-500mm |
| Shape: | Round, square |
| Package: | As request |
| Usage: | 1. For oil cylinder's outside cylinder and piston rod; 2. For transportation of natural gas, oil, kerosene, etc to avoid leakage; 3. For making parts of some machines such as the drive shaft of an automobile or the drill pipe of oil and bicycle frames; 4. For some large machinery such as boiler heating supply pipe; 5. For the storage of liquefied natural gas such as taxi trunk cylinders. |
| Warranty: | 12 months |
| Capacity: | 1000~1500 tons/month |
| Trademark: | CSDLS, neutral, or as request |
| Remark: | mainly internal diameter from 100mm to 500mm |
Domestic and Foreign Steel Pipe Material Comparison Table
| China CB | Japan JIS | United States AISI. ASTM | United Kingdom BS | Germany DIN | France NF | Former Soviet Union r OCT |
| Q235-A·F | SS41 | A36. A283C | Ust37-2 | |||
| Q235-A | SS41A. B | Rst37-2 | CT2 | |||
| 20 | S20C | C1020 | En2C | C22 | C20 | 20 |
| 35 | S35C | C1035 | En&A | C35 | XC38 | 35 |
| 20g | SB42 | A285.Gr.B AM14. GrB | 1633GrB | Ast41 | M2C | 20K |
| 20 | STPG38. 42 | A106. A53 | S2354 | |||
| 16Mn | SM50B SM22 | 1633. Gr.1 | st52-3 | 16r | ||
| 16MnR | SPV36 | A516. A515.Gr·60 Gr·70 | 19Mr5 | |||
| 15MnV | HTPS7VW | AZ25.GrA A225. GrB | ||||
| 40Mn | C1036 | En158 | 40MA | 40Mr5 | 40T | |
| 40Cr | SCr4 | 5140 | En18 S117 | 41C4 | 38C4 | 40X |
| 120Mo | A335. P2 A213. GrB | 3064-660 1501-620 | 130MoM | 12CD4 | 12XM | |
| 150Mo | STT42 STB42 | A387. Gr BS | C42 1653 | 160Mo4 | 15CD4 | 15XM |
| 35CMo | SCM3 | 64132 64135 | En198 | 34CT4 | 35CD4 | 35XM |
| 0tr13 | SUS410 | 4105 S41000 | X7Cn13 | 26C13 | 08X13 | |
| 0Cr18N9 | SUS304 | 304 S30400 | 304S15 | X5CrNi189 | ZON18.09 | 08X18H10 |
| OCr18Ni10Ti | SUS321 | 321 S32100 | 321512 321520 | X10CNiTi189 | Z6CNT18.10 | 0EX17H13M2 |
| Kind | Steel Grade | Chemical Composition (%) | Mechanical Properties |
| Carbon Steels | Q235 | C: 0.12 - 0.22, Si: ≤0.30, Mn: 0.30 - 0.70, P: ≤0.045, S: ≤0.050. | Yield strength: 235 MPa, Tensile strength: 375 - 500 MPa, Elongation: ≥26%. |
| 45# | C: 0.42 - 0.50, Si: 0.17 - 0.37, Mn: 0.50 - 0.80, P: ≤0.035, S: ≤0.035. | Yield strength: ≥355 MPa, Tensile strength: ≥600 MPa, Elongation: ≥16%. | |
| Alloy Steels | 20CrMnTi | C: 0.17 - 0.23, Si: 0.17 - 0.37, Mn: 0.80 - 1.10, Cr: 1.00 - 1.30, Ti: 0.04 - 0.10, P: ≤0.035, S: ≤0.035. | Yield strength: ≥835 MPa, Tensile strength: ≥1080 MPa, Elongation: ≥10%. |
| 38CrMoAl | C: 0.35 - 0.42, Si: 0.20 - 0.45, Mn: 0.30 - 0.60, Cr: 1.35 - 1.65, Mo: 0.15 - 0.25, Al: 0.70 - 1.10, P: ≤0.035, S: ≤0.035. | Yield strength: ≥835 MPa, Tensile strength: ≥980 MPa, Elongation: ≥14%. | |
| Stainless Steels | 0Cr18Ni9 (304) | C: ≤0.07, Si: ≤1.00, Mn: ≤2.00, Cr: 17.00 - 19.00, Ni: 8.00 - 11.00, P: ≤0.035, S: ≤0.035. | Yield strength: ≥205 MPa, Tensile strength: ≥520 MPa, Elongation: ≥40%. |
| 1Cr18Ni9Ti | C: ≤0.12, Si: ≤1.00, Mn: ≤2.00, Cr: 17.00 - 19.00, Ni: 8.00 - 11.00, Ti: 5(C - 0.02) - 0.80, P: ≤0.035, S: ≤0.035. | Yield strength: ≥205 MPa, Tensile strength: ≥520 MPa, Elongation: ≥40%. | |
| Tool Steels | T8 | C: 0.75 - 0.84, Si: ≤0.35, Mn: ≤0.40, P: ≤0.030, S: ≤0.020. | Hardness: HRC 62 - 64 (after proper heat treatment). High wear resistance and suitable for making cutting tools. |
| Cr12MoV | C: 1.45 - 1.70, Cr: 11.00 - 12.50, Mo: 0.40 - 0.60, V: 0.15 - 0.30, Si: ≤0.40, Mn: ≤0.40, P: ≤0.030, S: ≤0.030. | Hardness: HRC 58 - 62 (after heat treatment). It has high hardness, good wear resistance and toughness, and is widely used in cold work molds. | |
| High-Speed Steels | W18Cr4V | C: 0.70 - 0.80, W: 17.50 - 19.00, Cr: 3.80 - 4.40, V: 1.00 - 1.40, Si: ≤0.40, Mn: ≤0.40, P: ≤0.030, S: ≤0.030. | Hardness: HRC 63 - 66 (after heat treatment). It has excellent red hardness and wear resistance, and is suitable for high-speed cutting tools. |
| High-Speed Steels | M2 (W6Mo5Cr4V2) | C: 0.80 - 0.90, W: 5.50 - 6.75, Mo: 4.50 - 5.50, Cr: 3.80 - 4.40, V: 1.75 - 2.20, Si: ≤0.40, Mn: ≤0.40, P: ≤0.030, S: ≤0.030. | Hardness: HRC 63 - 66 (after heat treatment). It has better toughness and cutting performance than W18Cr4V, and is widely used in various high-speed cutting tools. |
We have a 400-ton hydraulic cold drawn unit, mainly produce cold drawn pipes,honing pipes and scrape roll pipes of various specifications and materials as round (diameter 100mm to 500mm) or special-shaped ones.
Applications
Our products are mainly used in environmental protection equipment, construction field, mechanical parts, medical equipment, petrochemical industry, power stations and so on.
CSDLS is a professional hydraulic engineering company with many advanced equipments in our factory. There are equipments specializing in making high-quality cylinders to create every detail precisely; there are equipments focusing on the production of conveying cylinders to provide strong support for efficient conveying; and there are also professional equipments for manufacturing cold-drawn tubes to ensure the excellent quality of the tubes. In addition, the production equipment for various cylinder accessories is also readily available. All these equipments together lay a solid foundation for us to produce high quality hydraulic products, and you can visualize our strong production strength through the pictures.
The goods are properly housed in special packaging, and the layers of protective barriers are built according to the high standards required for commercial transportation, effectively resisting all kinds of potential risks.
Our key competitive advantages include:
Exceptional Technical Expertise: Our team of experienced engineers and technical specialists utilizes the latest hydraulic technologies and state-of-the-art production equipment to ensure every product meets world-class standards.
Comprehensive Customization Capabilities: Whether for standard products or unique customization needs, we provide flexible and precise solutions tailored to the specific requirements of our customers.
Stringent Quality Management: With ISO9001 and multiple international certifications, we rigorously control quality at every stage of production to ensure high durability and stability.
Reliable Delivery and Service: We understand the importance of time for our customers. With our efficient supply chain and logistics systems, we ensure timely delivery and offer 24/7 technical support and after-sales service.
Competitive Pricing Advantage: While maintaining uncompromised quality, we offer highly competitive prices in the industry, helping our customers gain an edge in the market.
